A database about Preparation of Laboratory Reagents. A Project of SCIENCE Pakistan

1-Amino-1-Naphthol-4-sulfonic acid

Dissolve 0.2 g in 195 ml of sodium bisulphite solution (3 in20) and 5 ml of anhydrous sodium sulphite solution (1 in 5) and filter if necessary. Stopper and store in a cool dark place. Use within 10 days.
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